Re: BTFR question

[Ben Kreunen <ben@xxxxxxxxxxxxxxxxxxxxxxx>]

>Most Olympus cameras meter Off The Film (OTF) TTL with the shutter open in
>their aperture priority "auto" mode.  This would indeed result in the
>metered light passing through the filter twice.

On the subject of Olympus cameras, a little something I've worked out that 
didn't appear in my manual.

With the OM4-Ti I found the longest exposure it would do on automatic 
(centre-weighted) was around 15 seconds. If the built-in spot metering is 
used this will be extended to several minutes (The longest I've tried on 
auto was 3 minutes, I usually calculate long exposures manually) So if it's 
getting really dark it pays to use the spot metering.

Cheers

Ben

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http://www.bigbenpublishing.com.au/
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